1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
/*
* (C) Copyright 2002
* Peter De Schrijver (p2@mind.be), Mind Linux Solutions, NV.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*/
#include <common.h>
#include <asm/u-boot.h>
#include <asm/processor.h>
#include <command.h>
#include <configs/ML2.h>
#include <serial.h>
#include <linux/compiler.h>
#if (defined CONFIG_SYS_INIT_CHAN1) || (defined CONFIG_SYS_INIT_CHAN2)
#include <ns16550.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
#if (defined CONFIG_SYS_INIT_CHAN1) || (defined CONFIG_SYS_INIT_CHAN2)
const NS16550_t COM_PORTS[] = { (NS16550_t) CONFIG_SYS_NS16550_COM1,
(NS16550_t) CONFIG_SYS_NS16550_COM2
};
#endif
static int ml2_serial_init(void)
{
int clock_divisor = CONFIG_SYS_NS16550_CLK / 16 / gd->baudrate;
#ifdef CONFIG_SYS_INIT_CHAN1
(void) NS16550_init (COM_PORTS[0], clock_divisor);
#endif
#ifdef CONFIG_SYS_INIT_CHAN2
(void) NS16550_init (COM_PORTS[1], clock_divisor);
#endif
return 0;
}
static void ml2_serial_putc(const char c)
{
if (c == '\n')
NS16550_putc (COM_PORTS[CONFIG_SYS_DUART_CHAN], '\r');
NS16550_putc (COM_PORTS[CONFIG_SYS_DUART_CHAN], c);
}
static int ml2_serial_getc(void)
{
return NS16550_getc (COM_PORTS[CONFIG_SYS_DUART_CHAN]);
}
static int ml2_serial_tstc(void)
{
return NS16550_tstc (COM_PORTS[CONFIG_SYS_DUART_CHAN]);
}
static void ml2_serial_setbrg(void)
{
int clock_divisor = CONFIG_SYS_NS16550_CLK / 16 / gd->baudrate;
#ifdef CONFIG_SYS_INIT_CHAN1
NS16550_reinit (COM_PORTS[0], clock_divisor);
#endif
#ifdef CONFIG_SYS_INIT_CHAN2
NS16550_reinit (COM_PORTS[1], clock_divisor);
#endif
}
static void ml2_serial_puts(const char *s)
{
while (*s) {
serial_putc (*s++);
}
}
#ifdef CONFIG_SERIAL_MULTI
static struct serial_device ml2_serial_drv = {
.name = "ml2_serial",
.start = ml2_serial_init,
.stop = NULL,
.setbrg = ml2_serial_setbrg,
.putc = ml2_serial_putc,
.puts = ml2_serial_puts,
.getc = ml2_serial_getc,
.tstc = ml2_serial_tstc,
};
void ml2_serial_initialize(void)
{
serial_register(&ml2_serial_drv);
}
__weak struct serial_device *default_serial_console(void)
{
return &ml2_serial_drv;
}
#else
int serial_init(void)
{
return ml2_serial_init();
}
void serial_setbrg(void)
{
ml2_serial_setbrg();
}
void serial_putc(const char c)
{
ml2_serial_putc(c);
}
void serial_puts(const char *s)
{
ml2_serial_puts(s);
}
int serial_getc(void)
{
return ml2_serial_getc();
}
int serial_tstc(void)
{
return ml2_serial_tstc();
}
#endif
#if defined(CONFIG_CMD_KGDB)
void kgdb_serial_init (void)
{
}
void putDebugChar (int c)
{
serial_putc (c);
}
void putDebugStr (const char *str)
{
serial_puts (str);
}
int getDebugChar (void)
{
return serial_getc ();
}
void kgdb_interruptible (int yes)
{
return;
}
#endif
|
